Whilst the importance of phytoplankton (microalgae) as a primary producer for coastal ecosystems and thus fish production is well documented, the importance of macroalgae and seaweed in the preservation of fish stocks remains ...

The larvae of some species of reef fish appear to survive better depending on the timing of when they were spawned, according to new research from the National Institute for Mathematical and Biological Synthesis.

A pair of paleobiologists from Scripps Institution of Oceanography, UC San Diego have determined that the world's most numerous and diverse vertebrates – ray-finned fishes – began their ecological dominance of the oceans ...

An experimental study with size-selectively harvested zebrafish that began in 2006 at the Leibniz-Institute of Freshwater Ecology and Inland Fisheries in Berlin, Germany reveals that size-selective harvesting causes changes ...

Fish farming, or aquaculture, began in Malaysia as early as the 1920s, with the 1990s ushering in intensive commercial production. It is a rapidly growing sector that has witnessed a growth rate of ten percent in the last ...

Humans and animals instinctively evade rapidly approaching objects. By doing so, they avoid collisions or escape attacking predators. For this to happen, the brain must calculate the direction and speed of a stimulus in the ...

Fish

Tetrapods

A fish is any aquatic vertebrate animal that is typically ectothermic (or cold-blooded), covered with scales, and equipped with two sets of paired fins and several unpaired fins. Fish are abundant in the sea and in fresh water, with species being known from mountain streams (e.g., char and gudgeon) as well as in the deepest depths of the ocean (e.g., gulpers and anglerfish).

Food prepared from fish is also called fish, and it is an important food source for humans. They are harvested either from wild fisheries (see fishing) or farmed in much the same way as cattle or chickens (see aquaculture). They are also exploited by recreational fishers and fishkeepers, and are exhibited in public aquaria. Fish have had a role in many cultures through the ages, ranging from deities and religious symbols to the subjects of books and popular movies.